Hitachi HA16666P
The HA16666P/FP is a voltage mode PWM (pulse width modulation) control IC for switching regulator control. It can drive a power MOS FET efficiently on 600 kHz. Its stanby current is 0.3 mA (max), and it is used as the primary control power supply.DESCRIPTION
Functions●
●
●
●
●
●
●
●
● +5 V reference voltage circuit Triangular waveform oscillator PWM comparator Output circuit (Totem pole output) Overcurrent protection circuit (with one-pulselatch mode) Undervoltage lockout protectoin circuit Soft start and quick shutdown function Remote control function Comparator with internal 1.3 V reference voltage
FEATURES
● High-speed switching; tr = 80 ns (15 V amplitude) tf = 40 ns (15 V amplitude)● Low power dissipation; 0.3 mA max in standby state 12 mA max in operation state (V IN = 15 V)
● Dual-slope highly accurate dead-band duty setup circuit; Setup accuracy Du = ±3% (max)
● Wide output pulse width control range; 0 to 75% HA16666P/FP
● Undervoltage lockout protection; VIN high threshold voltage 10 V typ VIN low threshold voltage 8 V typ
● Two input threshold voltage for overcurrent protection cmparator; fixed voltage (1.3 V) variable voltage
● Double pulse output protection by overcurrent protection circuit with one-pulse latch mo...